Skill

network-scanner

From sundial-org-awesome-openclaw-skills-4

Scans networks using nmap to discover devices, IPs, hostnames, MAC addresses, and vendors. Supports config-defined networks or custom CIDRs for inventory, audits, and documentation.

Python

Install

npx claudepluginhub joshuarweaver/cascade-ai-ml-agents-misc-2 --plugin sundial-org-awesome-openclaw-skills-4

Tool Access

This skill uses the workspace's default tool permissions.

Preview

Discover and identify devices on local or remote networks using nmap. Gathers IP addresses, hostnames (via reverse DNS), MAC addresses, and vendor identification.

Supporting Assets

scripts/scan.py

SKILL.md

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Stars586

Forks75

Last CommitFeb 1, 2026

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Network Scanner

Discover and identify devices on local or remote networks using nmap. Gathers IP addresses, hostnames (via reverse DNS), MAC addresses, and vendor identification.

Requirements

nmap - Network scanning (apt install nmap or brew install nmap)
dig - DNS lookups (usually pre-installed)
sudo access recommended for MAC address discovery

Quick Start

# Auto-detect and scan current network
python3 scripts/scan.py

# Scan a specific CIDR
python3 scripts/scan.py 192.168.1.0/24

# Scan with custom DNS server for reverse lookups
python3 scripts/scan.py 192.168.1.0/24 --dns 192.168.1.1

# Output as JSON
python3 scripts/scan.py --json

Configuration

Configure named networks in ~/.config/network-scanner/networks.json:

{
  "networks": {
    "home": {
      "cidr": "192.168.1.0/24",
      "dns": "192.168.1.1",
      "description": "Home Network"
    },
    "office": {
      "cidr": "10.0.0.0/24",
      "dns": "10.0.0.1",
      "description": "Office Network"
    }
  }
}

Then scan by name:

python3 scripts/scan.py home
python3 scripts/scan.py office --json

Commands

# Create example config
python3 scripts/scan.py --init-config

# List configured networks
python3 scripts/scan.py --list

# Scan without sudo (may miss MAC addresses)
python3 scripts/scan.py home --no-sudo

Output Formats

Markdown (default):

### Home Network
*Last scan: 2026-01-28 00:10*

| IP | Name | MAC | Vendor |
|----|------|-----|--------|
| 192.168.1.1 | router.local | AA:BB:CC:DD:EE:FF | Ubiquiti |
| 192.168.1.100 | nas.local | 11:22:33:44:55:66 | Synology |

*2 devices found*

JSON (--json):

{
  "network": "Home Network",
  "cidr": "192.168.1.0/24",
  "devices": [
    {
      "ip": "192.168.1.1",
      "hostname": "router.local",
      "mac": "AA:BB:CC:DD:EE:FF",
      "vendor": "Ubiquiti"
    }
  ],
  "scanned_at": "2026-01-28T00:10:00",
  "device_count": 2
}

Use Cases

Device inventory: Keep track of all devices on your network
Security audits: Identify unknown devices
Documentation: Generate network maps for documentation
Automation: Integrate with home automation to detect device presence

Tips

Use sudo for accurate MAC address detection (nmap needs privileges for ARP)
Configure your local DNS server for better hostname resolution
Add to cron or heartbeat for daily inventory updates
Extend MAC_VENDORS in the script for better device identification